Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )
Posted on 2024-05-01, 12:38
Sure, as it waited ~2 years, no hurry 😀 I already have one Cirrus VLB with 1MB so I'm interested in S3 with 2 or better 4 MB DRAM.
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-28, 20:06
On your board irq 3 was probably shared by more devices so as you freed irq 5 it moved one device from irq 3 to 5 to avoid sharing. Maybe it would be possible to disable device taking irq 5 after boot by some control registers?
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-28, 01:28
Rasteri, congrat to finding LDRQ via GPIO toggling :) BTW delay function on dos platform may have defferent granularity, sometime it is 1ms sometimes 18.2ms, I don't know watcom implementation. BTW DJGPP uclock() that allows you make ~1us delay https://www.delorie.com/djgpp/doc/libc/ did those …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-27, 13:26
>Tiido I did it also on 2 layers but for project that fits on smaller pcb I consider 4 layers that are now cheap on JLCPCB so it result in less routing pain and better signal integrity due to planes. :) I thinking of making a version that will integrate also secondary superIO but far future when …
Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )
Posted on 2024-04-26, 18:37
Ok, I xan use Trio64V+ too. Is there published any pcb design or not yet?
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-26, 15:45
Heh, nice 3-slot version. So now there are 3 HW versions :) Did you place some DC-DC iverter for negative rails? EDIT: oh I see LM2575-12 it can work as inverter? I used pretty universal old MC34063, I think it's more than enough for a few tens of mA that usually soundcard or RS232 driver drains... …
Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )
Posted on 2024-04-25, 21:05
Hi, coming here from 968VL thread. I'm interested more in Virge /V64+ card as I have PCI donors. What is the current state of PCB stock? Are there available gerber files to make order in JLCPCB myself?
Re: S3 Vision 968 VLB replica
Posted on 2024-04-25, 20:56
Nice project, I found it today after may years when someone else put it in retroHW list thread... I'd also like to boost my VLB platform as I have only some 1MB Cirrus and Trio32. But Vision 968 is not easy to get. I have at least one PCI card with it but I'm not going to canibalize it. I would …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-25, 15:11
I bought SnPb 63/37 % balls and BGA stencils for a few $ on ebay/aliexpress. Of course buying a new/recycled balled PCH is an easier option...
Re: List of open-source PC hardware projects
Posted on 2024-04-25, 12:20
>S3 Vision 968 VLB replica Nice, I have seen this video chip only on PCI cards yet. Does it mean that S3 made this chip to operate in both environments and there are some strap pins to select one or could potentialy any PCI chip work on VLB (with some ext. hacks or out of the box)?
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-24, 20:22
Yes, epoxy glue or UV resist would work to shield out sanded solder mask. It prevent melted ball to short each other or be sucked by surrounding copper.... BTW re-soldering of PCH would require some IR radiator for bottom side of MB and hot air for top side, some heat-sensitive components would need …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-24, 20:16
Well I destroyed a perfectly good motherboard today, how's everyone else's day going :D Hehe, a science requires sacrifices, good job (x-ray imaging might be better :) So it proved that chinese layouter was too lazy to wire it out. Even they didn't fanout all pads to via holes. Drilling through the …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-24, 14:52
Tiido, this forum holds a hundreds of leaked MB schematics, most of them are for Gigabyte so you're lucky man :) https://smd.db-x7.ru/load/skhemy_materinskikh_plat/gigabyte/gigabyte_ga_p67a_d3_b3_rev_1_01_skhema/287-1-0-3134 on my MB the resistor was not populated and I had to put down PCH heatsink …
Re: List of Web Browsers For All Operating Systems
Posted on 2024-04-23, 21:14
I already tested MicroWeb 2.0 on my HP 200LX, it seems it renders test web page better (like fonts, encoding) but it renders less % of the whole page than older version 0.5x probably due to increased memory requirements...
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-18, 04:02
With my CT2950, I can hear a constant tone with noDMA test. Maybe ESS sound card differs in this aspect... How about your DMA and Tada test? - Does your ESS sound card play tone constantly during DMA test, or just about 1s? - Does it play Tada without issues for more than once? OK, later I may test …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-17, 22:07
I captured the LDRQ# signal during SBDIAG sine/tada test on my P67 MB with ESS ISA sndcard. Under Doom it looks similar. During boot and when soundcard is not used it's still high... Btw in my case the sbdiag sine noDMA is silent, both on real ISA and with SBEMU, only DMA sine plays. How about you? …
Re: List of Web Browsers For All Operating Systems
Posted on 2024-04-16, 00:49
Thanks. I just tried WebGL in 3D mapy.cz and it runs as slow as Supermium - no HW accel. I'll try to use it for some time and compare with Supermium...
Re: List of Web Browsers For All Operating Systems
Posted on 2024-04-15, 01:05
I tried Thorium. but seems to not work (and intended to work) on WXP...
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-15, 00:49
What SBDIAG program you exactly mean? I found this one from Snarkbark project: https://github.com/schlae/snark-barker/tree/master/sbdiag It may help to diagnose me that random IRQ5 issues... >LSS10999 So you modified the SAPPHISA.EXE to not write 0 to port 21h? Is it really needed or better to avoid …
Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards
Posted on 2024-04-12, 22:06
instead of building LPC-ISA adapter, I tried to directly implement sound blaster compatible 'dsp' over lpc bus using verilog. Nice, but the description is a bit short. What kind of FPGA you used? Is it this dev board? https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&No=1046 I …
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